English

Find the multiplicative inverse of the complex number. –i - Mathematics

Advertisements
Advertisements

Question

Find the multiplicative inverse of the complex number.

–i 

Sum

Solution

multiplicative inverse of -i

= 1i=1-i×ii=-ii2=-i-1=i

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Complex Numbers and Quadratic Equations - Exercise 5.1 [Page 104]

APPEARS IN

NCERT Mathematics [English] Class 11
Chapter 5 Complex Numbers and Quadratic Equations
Exercise 5.1 | Q 13 | Page 104

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Find the multiplicative inverse of the complex number.

5+3i


If α and β are different complex numbers with |β| = 1, then find |β-α1-α¯β|


Find the value of i + i2 + i3 + i4 


Simplify the following and express in the form a + ib:

3+-64


Write the conjugates of the following complex number:

3 – i


Write the conjugates of the following complex number:

--5


Write the conjugates of the following complex number:

cosθ + i sinθ


Find the value of i6+i7+i8+i9i2+i3


Find the value of x and y which satisfy the following equation (x, y ∈ R).

(x+iy)2+3i+2+i2-3i=913(1+i)


Find the value of x and y which satisfy the following equation (x, y∈R).

If x(1 + 3i) + y(2 − i) − 5 + i3 = 0, find x + y


Select the correct answer from the given alternatives:

The value of is i592+i590+i588+i586+i584i582+i580+i578+i576+i574 is equal to:


Answer the following:

Simplify the following and express in the form a + ib:

3+-64


Answer the following:

Simplify the following and express in the form a + ib:

52i(-4-3i)


Answer the following:

Simplify the following and express in the form a + ib:

(1 + 3i)2(3 + i)


Answer the following:

Simplify the following and express in the form a + ib:

4+3i1-i


Answer the following:

Simplify the following and express in the form a + ib:

(1+2i)(3+4i)(5+i)-1


Answer the following:

Solve the following equations for x, y ∈ R:

(x + iy) (5 + 6i) = 2 + 3i


Answer the following:

Show that 1-2i3-4i+1+2i3+4i is real


Answer the following:

Simplify: i29+i39+i49i30+i40+i50


Answer the following:

Simplify [11-2i+31+i][3+4i2-4i]


State true or false for the following:

Multiplication of a non-zero complex number by i rotates it through a right angle in the anti-clockwise direction.


State true or false for the following:

If three complex numbers z1, z2 and z3 are in A.P., then they lie on a circle in the complex plane.


State true or false for the following:

If n is a positive integer, then the value of in + (i)n+1 + (i)n+2 + (i)n+3 is 0.


What is the value of i4n+1-i4n-12?


The equation |z + 1 – i| = |z – 1 + i| represents a ______.


Solve the equation |z| = z + 1 + 2i.


If z1 and z2 are complex numbers such that z1 + z2 is a real number, then z2 = ______.


State True or False for the following:

For any complex number z the minimum value of |z| + |z – 1| is 1.


If (1+i1-i)x = 1, then ______.


If the least and the largest real values of α, for which the equation z + α|z – 1| + 2i = 0 (zCandi=-1) has a solution, are p and q respectively; then 4(p2 + q2) is equal to ______.


If α and β are the roots of the equation x2 + 2x + 4 = 0, then 1α3+1β3 is equal to ______.


The complex number z = x + iy which satisfy the equation |z-5iz+5i| = 1, lie on ______.


Show that (-1+3i)3 is a real number.


Simplify the following and express in the form a + ib.

3i5+2i7+i9i6+2i8+3i18


Evaluate the following:

i35


Show that (-1+3i)3 is a real number.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×
Our website is made possible by ad-free subscriptions or displaying online advertisements to our visitors.
If you don't like ads you can support us by buying an ad-free subscription or please consider supporting us by disabling your ad blocker. Thank you.